buildings and many of us are doing this now that we're in the new reality. >> there is a different vantage point of "discovery" there in the middle of silver springs. people, employees, who evacuated there quickly about 1:00, 130, after all of this started, still some waiting to get back in. we understand that the police have units and making sure there are no other dangerous explosives. this suspect was believed to have brought in boxes and backpacks with him and they're checking those out and probably canvassing the entire building to make sure that it is safe before people go back inside to collect some of their valuable that they need. >> and there is no timetable for this because their job is to make sure the building is safe and not to make sure people can come in, get their purse and keys and get their cars. so this could be something that goes on for some time as well. we heard from the battalion chief from montgomery county, they're literally going to go floor to floor, room to room, to try to identify any potentially dangerous items. and if they come across something, it is their